COLLEGE PHYSICS V1+WEBASSIGN MULTI-TERM
11th Edition
ISBN: 9780357683538
Author: SERWAY
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 17, Problem 20P
(a)
To determine
The maximum and minimum current carried by the copper block
(b)
To determine
The minimum current of copper block
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A rectangular block of copper has sides of length 10. cm, 20. cm,and 40. cm. If the block is connected to a 6.0 - V source acrosstwo of its opposite faces, what are (a) the maximum currentand (b) the minimum current the block can carry?
Parts of a ray's body act as cells in a battery. In a ray living in fresh water the cells are arranged in series, but for a ray
living in salt water the cells are arranged in parallel.
WW-
(A)
V)
The following results are for five cells in series. The e.m.f. of the five cells together is 6.9 V.
Load resistance / 2
Terminal p.d. /V
Current / A
2.2
3.3
1.5
the internal resistance of one cell is:
A rectangular block of copper has sides of length 14 cm, 26 cm, and 41 cm. If the block is connected to a 8.0 V source
across two of its opposite faces, find the following.
(a) What is the maximum current the block can carry?
2.90e8
Your response differs from the correct answer by more than 10%. Double check your calculations. A
(b) What is the minimum current the block can carry?
X A
Chapter 17 Solutions
COLLEGE PHYSICS V1+WEBASSIGN MULTI-TERM
Ch. 17.1 - Consider positive and negative charges all moving...Ch. 17.2 - Suppose a current-carrying wire has a...Ch. 17.3 - Look at the four circuits shown in Figure 17.6 and...Ch. 17.4 - Prob. 17.4QQCh. 17.4 - All electric devices are required to have...Ch. 17.4 - Suppose an electrical wire is replaced with one...Ch. 17.6 - Prob. 17.7QQCh. 17.6 - For the two resistors shown in Figure 17.12, rank...Ch. 17.6 - Two resistors, A and B, are connected in a series...Ch. 17.6 - The diameter of wire A is greater than the...
Ch. 17 - We have seen that an electric field must exist...Ch. 17 - A 12-V battery is connected across a device with...Ch. 17 - Prob. 3CQCh. 17 - In an analogy between traffic flow and electrical...Ch. 17 - Two copper wires A and B have the same length and...Ch. 17 - Two lightbulbs are each connected to a voltage of...Ch. 17 - Newspaper articles often have statements such as...Ch. 17 - There is an old admonition given to experimenters...Ch. 17 - What could happen to the drift velocity of the...Ch. 17 - Power P0 = I0 V0 is delivered to a resistor of...Ch. 17 - When is more power delivered to a lightbulb,...Ch. 17 - Prob. 1PCh. 17 - A copper wire has a circular cross section with a...Ch. 17 - In the Bohr model of the hydrogen atom, an...Ch. 17 - A typical lightning bolt may last for 0.200 s and...Ch. 17 - Prob. 5PCh. 17 - Prob. 6PCh. 17 - A 2.0 102-km-long high-voltage transmission line...Ch. 17 - An aluminum wire having a cross-sectional area of...Ch. 17 - An iron wire has a cross-sectional area of 5.00 ...Ch. 17 - Prob. 10PCh. 17 - Prob. 11PCh. 17 - Germanium is a semiconducting metal with a...Ch. 17 - Prob. 13PCh. 17 - Prob. 14PCh. 17 - Nichrome wire of cross-sectional radius 0.791 mm...Ch. 17 - Prob. 16PCh. 17 - A potential difference of 12 V is found to produce...Ch. 17 - The current supplied by a battery in a portable...Ch. 17 - A wire 50.0 m long and 2.00 mm in diameter is...Ch. 17 - Prob. 20PCh. 17 - Prob. 21PCh. 17 - The human body can exhibit a wide range of...Ch. 17 - Starting from Ohms law, show that E = J, where E...Ch. 17 - Prob. 24PCh. 17 - Prob. 25PCh. 17 - Prob. 26PCh. 17 - Prob. 27PCh. 17 - At what temperature will aluminum have a...Ch. 17 - At 20.0C, the carbon resistor in an electric...Ch. 17 - Prob. 30PCh. 17 - Prob. 31PCh. 17 - An engineer needs a resistor with a zero overall...Ch. 17 - In one form of plethysmograph (a device for...Ch. 17 - Prob. 34PCh. 17 - A 5.00-V power supply provides a maximum current...Ch. 17 - If electrical energy costs 0.12 per kilowatt-hour,...Ch. 17 - Residential building codes typically require the...Ch. 17 - A portable coffee heater supplies a potential...Ch. 17 - The heating element of a coffeemaker operates at...Ch. 17 - A typical cell phone consumes an average of about...Ch. 17 - Lightbulb A is marked 25.0 W 120. V, and lightbulb...Ch. 17 - Prob. 42PCh. 17 - A copper cable is designed to carry a current of...Ch. 17 - Batteries are rated in terms of ampere-hours (A ...Ch. 17 - The potential difference across a resting neuron...Ch. 17 - The cost of electricity varies widely throughout...Ch. 17 - An electric utility company supplies a customers...Ch. 17 - An office worker uses an immersion heater to warm...Ch. 17 - Two wires A and B made of the same material and...Ch. 17 - Prob. 50PCh. 17 - If a battery is rated at 60.0 A h, how much total...Ch. 17 - A car owner forgets to turn off the headlights of...Ch. 17 - Prob. 53APCh. 17 - A given copper wire has a resistance of 5.00 at...Ch. 17 - Prob. 55APCh. 17 - Birds resting on high-voltage power lines are a...Ch. 17 - Prob. 58APCh. 17 - You are cooking breakfast for yourself and a...Ch. 17 - The current in a conductor varies in time as shown...Ch. 17 - A 120.-V motor has mechanical power output of 2.50...Ch. 17 - Prob. 62APCh. 17 - A length of metal wire has a radius of 5.00 103 m...Ch. 17 - In a certain stereo system, each speaker has a...Ch. 17 - A resistor is constructed by forming a material of...Ch. 17 - When a straight wire is heated, its resistance...Ch. 17 - An x-ray tube used for cancer therapy operates at...Ch. 17 - A man wishes to vacuum his car with a canister...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- If the current carried by a conductor is doubled, what happens to (a) the charge carrier density, (b) the current density, (c) the electron drift velocity, and (d) the average time interval between collisions?arrow_forwardTopic: Electric Current, Factors affecting resistance, Direct current, emf Problem: A 100 m long copper wire of radius 0.12 mm is connected across a 1.5 V battery. Calculate (a) the resistance of the wire (b) the current passing through it.arrow_forwardQ. No 03: a) You are given length of heating wire made of nickel-chromium-iron Alloy called Nichrome. It has a resistance of 722. Under what circumstances, the wire will dissipate more power. (a) It is to be connected across a 120 V line. (b) The wire is cut in half pieces and two halves are connected in parallel across the line?arrow_forward
- A 4-meter long wire that has a radius of .750 mm has been subjected to a voltage of 10.0 V, resulting in a current with intensity of 23.45 A. Determine the (a) area, (b) resistance, and (c) resistivity of the wire.arrow_forwardIn a large flashlight, the distance from the on-off switch and the light bulb is 9.9 cm. (a) Calculate the drift velocity for the electrons to drift this distance if the flashlight wires are made of copper, with a radius of 0.537 mm, and carry a current of 0.9 A? There are 8.49X1028 electrons per unit m³. Drift velocity, Vf. ✔m/s (b) How long does it take an electron to travel the distance from the on-off switch to the light-bulb? Time, t: min (c) Does this time seem reasonable? Does it explain why the flashlight starts instantly? Reflect on these questions.arrow_forwardA coil of Nichrome wire is 25.0 m long. The wire has a diameter of .400 mm and is at 20.0C. If it carries a 0.400 A current, what are: (a) the magnitude of the electric field in the wire, (b) the power delivered to it?, (c) If the temperature is increased to 340C and the potential difference across the wire remains constant, how much power is delivered?arrow_forward
- A cylindrical copper cable 1.50 km long is connected acrossa 220.0 V potential difference. What should be its diameter so thatit produces heat at a rate of 90.0 W?arrow_forwardThe electron beam emerging from a certain high-energy electron accelerator has a circular cross section of radius 1.65 mm. (a) The beam current is 8.55 µA. Find the current density in the beam assuming it is uniform throughout. |A/m2 (b) The speed of the electrons is so close to the speed of light that their speed can be taken as 300 Mm/s with negligible error. Find the electron density in the beam. m-3 (c) Over what time interval does Avogadro's number of electrons emerge from the accelerator?arrow_forwardWhat current flows through a 2.58-cm-diameter rod of pure silicon that is 19.0 cm long, when 1.00 ✕ 103 V is applied to it?arrow_forward
- A taser sends about 1100 V through the human body, resulting in an average current of 2.5 mA. a) Determine the Power output of the taser. b) How much charge (C) flows per second? c) How many electrons flow through the body per second when the taser is deployed through someone's body?arrow_forward28 1 6.0 x 10 m3 1. Consider a cylindrical wire that has conduction electron density and radius 0.5 mm. An electric field with strength 7.5 x 10-4 creates a current of 4.8 x 10 electrons per second. a) What is the average drift speed for an electron? (include units) b) What is the average time in between electron collisions? fs (express your answer in femtoseconds)arrow_forwardA 320-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,070 A. If the conductor is copper with a free charge density of 8.50 x 1028 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable? (Use 3.156 x 107 for the number of seconds in a year.) yrarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning